There are still lots of Qt5 apps in Debian. Qt5 style is still needed.
- Bug#1057763: Macy Lin
- Bug#1057763: qt5-style-kvantum: add Qt 6 build 陳昌倬
- Bug#1057763: qt5-style-kvantum: add Qt 6 build Vladimir K
- Bug#1057763: qt5-style-kvantum: add Qt 6 build Leandro Cunha
- Bug#1057763: qt5-style-kvantum: add Qt 6 build Boyuan Yang
